[Retracted] Intelligent Algorithm-Based Multislice Spiral Computed Tomography to Diagnose Coronary Heart Disease

Table 1

Criteria for quality assessment of coronary artery images.

Grade	CT image manifestations
1	One cannot distinguish the trunk and cannot make a diagnosis
2	There were severe artifacts; the full length of a trunk is not clear so that the diagnosis cannot be completed
3	There were moderate artifacts, and part of a trunk is not clear, but a complete diagnosis can be made
4	There were mild artifacts, only minor artifacts in the trunk, which had no effect on the diagnosis
5	The image was clear and without artifacts.